| Tool Name | Best For | Difficulty | Success Rate | Risk | | :--- | :--- | :--- | :--- | :--- | | | K2, K28 Access Panels | Medium (needs Python) | 85% (older f/w) | Low | | USBDM Firmware Tool | K40, K60, U160 | Easy (USB drive) | 100% (but wipes data) | Medium (data loss) | | ZKTeco Service Tool (v2.4) | InBio 160/260 | Hard (dongle required) | 95% | Low (if legitimate) | | Hardware UART Reset | Bricked/Locked devices | Expert (Soldering) | 99% | High (physical damage) | | AttInf Log Explorer | Reading forgotten creds | Easy (Network) | 60% | Low |
If you are locked out of the device menu because of an admin password or fingerprint you don't have, use the method: zkteco password reset tool
Works like a charm on firmware versions prior to 2019. ZKTeco patched this hole in newer versions. ZKTeco Password Reset Tool — Practical Guide ZK